This quiz works best with JavaScript enabled. Home > Science > Biology > Circulatory System – Quiz 105 🏠 Homepage 📘 Download PDF Books 📕 Premium PDF Books Circulatory System Quiz 105 (20 MCQs) Quiz Instructions Select an option to see the correct answer instantly. 1. Blood always flow in ..... to all body part A) Blood vessels. B) Blood tunnels. C) Blood tubes. D) Blood chambers. Show Answer Correct Answer: A) Blood vessels. 2. If a person has type A blood, which of the following type of antigens does their blood contain. A) Type A. B) Type B. C) RH antigen. D) No RH antigen. Show Answer Correct Answer: A) Type A. 3. Name the blood vessels that carry blood to the heart A) Artery. B) Pulmonary artery. C) Vein. D) Mahatmaani. Show Answer Correct Answer: C) Vein. 4. Which blood type is also known as the universal recipient? A) O-. B) O+. C) AB+. D) AB-. Show Answer Correct Answer: C) AB+. 5. What is the largest area of the brain that controls everything conscious? A) Cerebellum. B) Cerebrum. C) Diencephalon. D) Brain Stem. Show Answer Correct Answer: B) Cerebrum. 6. Minimum blood pressure > 90mmHg and maximum blood pressure > 140mmHg mean what disease? A) Atherosclerosis. B) Heart attack. C) High Blood Pressure. D) Heart valve regurgitation. Show Answer Correct Answer: C) High Blood Pressure. 7. A full heart contraction lasts A) 0.1 sec. B) 0.3 sec. C) 0.4 sec. D) 0.8 sec. Show Answer Correct Answer: C) 0.4 sec. 8. The lub dub sound of the heart beating is the sound of: A) The heart valves opening and closing. B) The muscles of the heart contracting. C) The blood moving in and out of the heart. D) The blood moving in and out of the lungs. Show Answer Correct Answer: A) The heart valves opening and closing. 9. The heart muscles contract and relax on its own, we have no control over it. This type of muscle is ..... in nature? A) Voluntary. B) Super voluntary. C) Involuntary. D) In between voluntary and involuntary. Show Answer Correct Answer: C) Involuntary. 10. When we breathe in the diaphragm ..... A) Contracts and moves downward. B) Relaxes and moves upwards. Show Answer Correct Answer: A) Contracts and moves downward. 11. Deoxygenated blood passes from the ..... into the right ventricle, and goes to the lungs. A) Left Atrium. B) Right Atrium. C) Left Ventricle. D) Aorta. Show Answer Correct Answer: B) Right Atrium. 12. Deoxygenated blood from the body enters the heart through the ..... A) Aorta. B) Pulmonary Arteries. C) Vena Cava. D) Pulmonary Veins. Show Answer Correct Answer: C) Vena Cava. 13. Blood delivers these essential supplies to every part of your body. A) True. B) False. Show Answer Correct Answer: A) True. 14. Why does a lower resting heart rate generally indicates that a person is fitter? A) The heart needs to work hard to pump the blood around the body. B) The heart of a fitter person is always resting. C) The heart does not need to pump many times to get the blood around the body. D) The heart pumps blood out of the body. Show Answer Correct Answer: C) The heart does not need to pump many times to get the blood around the body. 15. -allow the exchange of gases, nutrients and wastes between cells and blood. A) Arteries. B) Veins. C) Capillaries. D) None of above. Show Answer Correct Answer: C) Capillaries. 16. The heart has ..... sides. A) 1. B) 2. C) 4. D) 5. Show Answer Correct Answer: B) 2. 17. What is the most important part of our circulatory system? A) Brain. B) Heart. C) Veins. D) Lungs. Show Answer Correct Answer: B) Heart. 18. Organ that relaxes and contracts A) Muscle. B) Cartilage. C) Joint. D) Ligament. Show Answer Correct Answer: A) Muscle. 19. Which of the following describes veins? A) Thick tunica media with extra elastic fibers, withstands great changes in pressure, highest pressure vessel. B) Thinner tunica media, has valves. C) Only tunica intima, good for exchange of materials. D) All of these. Show Answer Correct Answer: B) Thinner tunica media, has valves. 20. Why athletes have lower heart rate? A) Their heart is more efficient at pumping blood around the body. B) Their lungs have more air capacity. C) Because they don't need oxygen as much as people who don't work out. D) They have bigger muscle than average people. Show Answer Correct Answer: A) Their heart is more efficient at pumping blood around the body. ← PreviousNext →Related QuizzesScience QuizzesCirculatory System Quiz 1Circulatory System Quiz 2Circulatory System Quiz 3Circulatory System Quiz 4Circulatory System Quiz 5Circulatory System Quiz 6Circulatory System Quiz 7Circulatory System Quiz 8Circulatory System Quiz 9 🏠 Back to Homepage 📘 Download PDF Books 📕 Premium PDF Books